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0 pointspansa25y ago0 comments

The justification for function-scope instead of block-scope is that only the former really works if you have implicit variable declarations.

In turn, implicit variable declarations (using the same syntax for initialisation and assignment) are a reasonable choice for a language that aimed to be “executable pseudocode” and that supports mixing initialisation and assignment in a single statement (e.g. `a, b, self.c = foo()`).

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3 comments · 1 top-level

Blikkentrekker5y ago· 2 in thread

It could easily be written as `var a, var b, self.c = foo()`.

Having the same syntax for initialization and assignment is quite quæstionable.

pansa2OP5y ago

That’s not a bad suggestion, but it’s quite verbose (it would require declaring multiple variables as `var x, var y, var z` instead of `var x, y, z`).

Blikkentrekker5y ago

That could easily be `var (x, y, z) =`, which is similar to what many languages use.

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